== sanity test 60c: unlink file when mds full ============ 09:18:57 (1789132737)
create 5000 files
 - open/close 661 (time 1789132752.10 total 10.03 last 65.90)
 - open/close 1281 (time 1789132762.10 total 20.03 last 61.98)
 - open/close 1929 (time 1789132772.11 total 30.04 last 64.77)
 - open/close 2551 (time 1789132782.11 total 40.04 last 62.16)
 - open/close 3195 (time 1789132792.12 total 50.05 last 64.37)
 - open/close 3786 (time 1789132802.12 total 60.05 last 59.09)
 - open/close 4378 (time 1789132812.13 total 70.06 last 59.16)
 - open/close 4967 (time 1789132822.13 total 80.06 last 58.89)
total: 5000 open/close in 80.60 seconds: 62.03 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789132827 ; total 0 ; last 0)
total: 5000 unlinks in 54 seconds: 92.592590 unlinks/second
fail_loc=0